Cellulose Acetate Butyrate Granules

Cellulose Acetate Butyrate Granules are made from a thermoplastic polymer that offers high-impact strength and good processability. They’re available in 17 variations with a choice of different molecular weights, colors and viscosity grades. With their range of properties, Cellulose Acetate Butyrate Granules have diverse applications across many industries. These include being used for the injection molding of consumer goods like tool handles, spectacle frames and combs. They’re also used in automotive parts and food packaging due to their toughness, rigidity and good thermal stability.

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Properties

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Material Properties for Polymers

Physical Properties

Element	Value
Abbe number	80-84
Flammability	HB
Radiation resistance	Fair
Refractive index	1.478
Resistance to Ultra-violet	Good
Limiting oxygen index( % )	17
Water absorption - over 24 hours( % )	0.9-2.2
Density( gcm⁻³ )	1.2

Chemical Resistance

Element	Value
Acids - dilute	Fair-Poor
Alcohols	Poor
Alkalis	Fair-Poor
Aromatic hydrocarbons	Poor
Greases and Oils	Good-Poor
Halogenated Hydrocarbons	Poor
Halogens	Poor
Ketones	Poor

Electrical Properties

Element	Value
Dielectric constant @1MHz	2.5-6.2
Dissipation factor @ 1kHz	0.04
Dielectric strength( kV mm⁻¹ )	10
Volume resistivity( Ohmcm )	10¹¹-10¹⁵

Mechanical Properties

Element	Value
Hardness - Rockwell	99
Elongation at break( % )	60
Tensile modulus( GPa )	0.3-2
Izod impact strength( J m⁻¹ )	260
Tensile strength( MPa )	20-60

Thermal Properties

Element	Value
Heat-deflection temperature - 0.45MPa( C )	73
Heat-deflection temperature - 1.8MPa( C )	62
Lower working temperature( C )	<-40
Upper working temperature( C )	60-100
Thermal conductivity( W m⁻¹ K⁻¹ )	0.16-0.32@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	140

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Cellulose Acetate Butyrate Granules

Material Properties for Polymers